mirror of
https://github.com/scratchfoundation/scratch-blocks.git
synced 2025-06-06 01:44:35 -04:00
770 lines
26 KiB
JavaScript
770 lines
26 KiB
JavaScript
/**
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* @license
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* Visual Blocks Editor
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*
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* Copyright 2017 Google Inc.
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* https://developers.google.com/blockly/
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @fileoverview Layout code for a vertical variant of the flyout.
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* @author fenichel@google.com (Rachel Fenichel)
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*/
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'use strict';
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goog.provide('Blockly.VerticalFlyout');
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goog.require('Blockly.Block');
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goog.require('Blockly.Comment');
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goog.require('Blockly.Events');
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goog.require('Blockly.Flyout');
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goog.require('Blockly.FlyoutButton');
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goog.require('Blockly.utils');
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goog.require('Blockly.WorkspaceSvg');
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goog.require('goog.dom');
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goog.require('goog.dom.animationFrame.polyfill');
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goog.require('goog.events');
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goog.require('goog.math.Rect');
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goog.require('goog.userAgent');
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/**
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* Class for a flyout.
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* @param {!Object} workspaceOptions Dictionary of options for the workspace.
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* @extends {Blockly.Flyout}
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* @constructor
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*/
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Blockly.VerticalFlyout = function(workspaceOptions) {
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workspaceOptions.getMetrics = this.getMetrics_.bind(this);
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workspaceOptions.setMetrics = this.setMetrics_.bind(this);
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Blockly.VerticalFlyout.superClass_.constructor.call(this, workspaceOptions);
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/**
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* Flyout should be laid out vertically.
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* @type {boolean}
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* @private
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*/
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this.horizontalLayout_ = false;
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/**
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* Map of checkboxes that correspond to monitored blocks.
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* Each element is an object containing the SVG for the checkbox, a boolean
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* for its checked state, and the block the checkbox is associated with.
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* @type {!Object.<string, !Object>}
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* @private
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*/
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this.checkboxes_ = {};
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};
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goog.inherits(Blockly.VerticalFlyout, Blockly.Flyout);
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/**
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* Does the flyout automatically close when a block is created?
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* @type {boolean}
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*/
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Blockly.VerticalFlyout.prototype.autoClose = false;
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/**
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* The width of the flyout, if not otherwise specified.
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* @type {number}
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*/
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Blockly.VerticalFlyout.prototype.DEFAULT_WIDTH = 250;
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/**
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* Size of a checkbox next to a variable reporter.
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* @type {number}
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* @const
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*/
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Blockly.VerticalFlyout.prototype.CHECKBOX_SIZE = 25;
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/**
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* Amount of touchable padding around reporter checkboxes.
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* @type {number}
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* @const
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*/
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Blockly.VerticalFlyout.prototype.CHECKBOX_TOUCH_PADDING = 12;
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/**
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* SVG path data for checkmark in checkbox.
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* @type {string}
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* @const
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*/
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Blockly.VerticalFlyout.prototype.CHECKMARK_PATH =
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'M' + Blockly.VerticalFlyout.prototype.CHECKBOX_SIZE / 4 +
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' ' + Blockly.VerticalFlyout.prototype.CHECKBOX_SIZE / 2 +
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'L' + 5 * Blockly.VerticalFlyout.prototype.CHECKBOX_SIZE / 12 +
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' ' + 2 * Blockly.VerticalFlyout.prototype.CHECKBOX_SIZE / 3 +
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'L' + 3 * Blockly.VerticalFlyout.prototype.CHECKBOX_SIZE / 4 +
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' ' + Blockly.VerticalFlyout.prototype.CHECKBOX_SIZE / 3;
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/**
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* Size of the checkbox corner radius
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* @type {number}
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* @const
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*/
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Blockly.VerticalFlyout.prototype.CHECKBOX_CORNER_RADIUS = 5;
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/**
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* Space above and around the checkbox.
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* @type {number}
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* @const
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*/
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Blockly.VerticalFlyout.prototype.CHECKBOX_MARGIN = Blockly.Flyout.prototype.MARGIN;
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/**
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* Total additional width of a row that contains a checkbox.
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* @type {number}
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* @const
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*/
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Blockly.VerticalFlyout.prototype.CHECKBOX_SPACE_X =
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Blockly.VerticalFlyout.prototype.CHECKBOX_SIZE +
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2 * Blockly.VerticalFlyout.prototype.CHECKBOX_MARGIN;
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/**
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* Initializes the flyout.
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* @param {!Blockly.Workspace} targetWorkspace The workspace in which to create
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* new blocks.
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*/
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Blockly.VerticalFlyout.prototype.init = function(targetWorkspace) {
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Blockly.VerticalFlyout.superClass_.init.call(this, targetWorkspace);
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this.workspace_.scale = targetWorkspace.scale;
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};
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/**
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* Creates the flyout's DOM. Only needs to be called once.
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* @param {string} tagName HTML element
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* @return {!Element} The flyout's SVG group.
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*/
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Blockly.VerticalFlyout.prototype.createDom = function(tagName) {
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Blockly.VerticalFlyout.superClass_.createDom.call(this, tagName);
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/*
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<defs>
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<clipPath id="blocklyBlockMenuClipPath">
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<rect id="blocklyBlockMenuClipRect" height="1147px"
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width="248px" y="0" x="0">
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</rect>
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</clipPath>
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</defs>
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*/
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this.defs_ = Blockly.utils.createSvgElement('defs', {}, this.svgGroup_);
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var clipPath = Blockly.utils.createSvgElement('clipPath',
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{'id':'blocklyBlockMenuClipPath'}, this.defs_);
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this.clipRect_ = Blockly.utils.createSvgElement('rect',
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{
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'id': 'blocklyBlockMenuClipRect',
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'height': '0',
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'width': '0',
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'y': '0',
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'x': '0'
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},
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clipPath);
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this.workspace_.svgGroup_.setAttribute(
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'clip-path', 'url(#blocklyBlockMenuClipPath)');
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return this.svgGroup_;
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};
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/**
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* Calculate the bounding box of the flyout.
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*
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* @return {Object} Contains the position and size of the bounding
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* box containing the elements (blocks, buttons, labels) in the flyout.
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*/
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Blockly.VerticalFlyout.prototype.getContentBoundingBox_ = function() {
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var contentBounds = this.workspace_.getBlocksBoundingBox();
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var bounds = {
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xMin: contentBounds.x,
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yMin: contentBounds.y,
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xMax: contentBounds.x + contentBounds.width,
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yMax: contentBounds.y + contentBounds.height
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};
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// Check if any of the buttons/labels are outside the blocks bounding box.
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for (var i = 0; i < this.buttons_.length; i ++) {
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var button = this.buttons_[i];
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var buttonPosition = button.getPosition();
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if (buttonPosition.x < bounds.xMin) {
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bounds.xMin = buttonPosition.x;
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}
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if (buttonPosition.y < bounds.yMin) {
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bounds.yMin = buttonPosition.y;
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}
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// Button extends past the bounding box to the right.
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if (buttonPosition.x + button.width > bounds.xMax) {
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bounds.xMax = buttonPosition.x + button.width;
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}
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// Button extends past the bounding box on the bottom
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if (buttonPosition.y + button.height > bounds.yMax) {
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bounds.yMax = buttonPosition.y + button.height;
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}
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}
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return {
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x: bounds.xMin,
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y: bounds.yMin,
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width: bounds.xMax - bounds.xMin,
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height: bounds.yMax - bounds.yMin,
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};
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};
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/**
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* Return an object with all the metrics required to size scrollbars for the
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* flyout. The following properties are computed:
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* .viewHeight: Height of the visible rectangle,
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* .viewWidth: Width of the visible rectangle,
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* .contentHeight: Height of the contents,
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* .contentWidth: Width of the contents,
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* .viewTop: Offset of top edge of visible rectangle from parent,
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* .contentTop: Offset of the top-most content from the y=0 coordinate,
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* .absoluteTop: Top-edge of view.
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* .viewLeft: Offset of the left edge of visible rectangle from parent,
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* .contentLeft: Offset of the left-most content from the x=0 coordinate,
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* .absoluteLeft: Left-edge of view.
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* @return {Object} Contains size and position metrics of the flyout.
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* @private
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*/
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Blockly.VerticalFlyout.prototype.getMetrics_ = function() {
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if (!this.isVisible()) {
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// Flyout is hidden.
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return null;
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}
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var optionBox = this.getContentBoundingBox_();
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// Padding for the end of the scrollbar.
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var absoluteTop = this.SCROLLBAR_PADDING;
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var absoluteLeft = 0;
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var viewHeight = this.height_ - 2 * this.SCROLLBAR_PADDING;
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var viewWidth = this.getWidth() - this.SCROLLBAR_PADDING;
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// Add padding to the bottom of the flyout, so we can scroll to the top of
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// the last category.
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var contentHeight = optionBox.height * this.workspace_.scale;
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this.recordCategoryScrollPositions_();
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var bottomPadding = this.MARGIN;
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if (this.categoryScrollPositions.length > 0) {
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var lastLabel = this.categoryScrollPositions[
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this.categoryScrollPositions.length - 1];
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var lastPos = lastLabel.position * this.workspace_.scale;
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var lastCategoryHeight = contentHeight - lastPos;
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if (lastCategoryHeight < viewHeight) {
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bottomPadding = viewHeight - lastCategoryHeight;
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}
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}
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var metrics = {
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viewHeight: viewHeight,
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viewWidth: viewWidth,
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contentHeight: contentHeight + bottomPadding,
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contentWidth: optionBox.width * this.workspace_.scale + 2 * this.MARGIN,
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viewTop: -this.workspace_.scrollY + optionBox.y,
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viewLeft: -this.workspace_.scrollX,
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contentTop: optionBox.y,
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contentLeft: optionBox.x,
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absoluteTop: absoluteTop,
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absoluteLeft: absoluteLeft
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};
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return metrics;
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};
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/**
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* Sets the translation of the flyout to match the scrollbars.
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* @param {!Object} xyRatio Contains a y property which is a float
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* between 0 and 1 specifying the degree of scrolling and a
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* similar x property.
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* @private
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*/
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Blockly.VerticalFlyout.prototype.setMetrics_ = function(xyRatio) {
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var metrics = this.getMetrics_();
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// This is a fix to an apparent race condition.
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if (!metrics) {
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return;
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}
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if (goog.isNumber(xyRatio.y)) {
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this.workspace_.scrollY = -metrics.contentHeight * xyRatio.y;
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}
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this.workspace_.translate(this.workspace_.scrollX + metrics.absoluteLeft,
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this.workspace_.scrollY + metrics.absoluteTop);
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this.clipRect_.setAttribute('height', Math.max(0, metrics.viewHeight) + 'px');
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this.clipRect_.setAttribute('width', metrics.viewWidth + 'px');
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if (this.categoryScrollPositions) {
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this.selectCategoryByScrollPosition(-this.workspace_.scrollY);
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}
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};
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/**
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* Move the flyout to the edge of the workspace.
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*/
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Blockly.VerticalFlyout.prototype.position = function() {
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if (!this.isVisible()) {
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return;
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}
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var targetWorkspaceMetrics = this.targetWorkspace_.getMetrics();
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if (!targetWorkspaceMetrics) {
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// Hidden components will return null.
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return;
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}
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// This version of the flyout does not change width to fit its contents.
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// Instead it matches the width of its parent or uses a default value.
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this.width_ = this.getWidth();
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if (this.parentToolbox_) {
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var toolboxWidth = this.parentToolbox_.getWidth();
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var categoryWidth = toolboxWidth - this.width_;
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var x = this.toolboxPosition_ == Blockly.TOOLBOX_AT_RIGHT ?
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targetWorkspaceMetrics.viewWidth : categoryWidth;
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var y = 0;
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} else {
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var x = this.toolboxPosition_ == Blockly.TOOLBOX_AT_RIGHT ?
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targetWorkspaceMetrics.viewWidth - this.width_ : 0;
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var y = 0;
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}
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// Record the height for Blockly.Flyout.getMetrics_
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this.height_ = Math.max(0, targetWorkspaceMetrics.viewHeight - y);
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this.setBackgroundPath_(this.width_, this.height_);
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this.svgGroup_.setAttribute("width", this.width_);
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this.svgGroup_.setAttribute("height", this.height_);
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var transform = 'translate(' + x + 'px,' + y + 'px)';
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Blockly.utils.setCssTransform(this.svgGroup_, transform);
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// Update the scrollbar (if one exists).
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if (this.scrollbar_) {
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// Set the scrollbars origin to be the top left of the flyout.
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this.scrollbar_.setOrigin(x, y);
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this.scrollbar_.resize();
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}
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// The blocks need to be visible in order to be laid out and measured
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// correctly, but we don't want the flyout to show up until it's properly
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// sized. Opacity is set to zero in show().
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this.svgGroup_.style.opacity = 1;
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};
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/**
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* Create and set the path for the visible boundaries of the flyout.
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* @param {number} width The width of the flyout, not including the
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* rounded corners.
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* @param {number} height The height of the flyout, not including
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* rounded corners.
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* @private
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*/
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Blockly.VerticalFlyout.prototype.setBackgroundPath_ = function(width, height) {
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var atRight = this.toolboxPosition_ == Blockly.TOOLBOX_AT_RIGHT;
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// Decide whether to start on the left or right.
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var path = ['M ' + 0 + ',0'];
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// Top.
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path.push('h', width);
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// Rounded corner.
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path.push('a', this.CORNER_RADIUS, this.CORNER_RADIUS, 0, 0,
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atRight ? 0 : 1,
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atRight ? -this.CORNER_RADIUS : this.CORNER_RADIUS,
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this.CORNER_RADIUS);
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// Side closest to workspace.
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path.push('v', Math.max(0, height - this.CORNER_RADIUS * 2));
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// Rounded corner.
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path.push('a', this.CORNER_RADIUS, this.CORNER_RADIUS, 0, 0,
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atRight ? 0 : 1,
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atRight ? this.CORNER_RADIUS : -this.CORNER_RADIUS,
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this.CORNER_RADIUS);
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// Bottom.
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path.push('h', -width);
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path.push('z');
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this.svgBackground_.setAttribute('d', path.join(' '));
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};
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/**
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* Scroll the flyout to the top.
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*/
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Blockly.VerticalFlyout.prototype.scrollToStart = function() {
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this.scrollbar_.set(0);
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};
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/**
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* Scroll the flyout to a position.
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* @param {number} pos The targeted scroll position in workspace coordinates.
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* @package
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*/
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Blockly.VerticalFlyout.prototype.scrollTo = function(pos) {
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this.scrollTarget = pos * this.workspace_.scale;
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// Make sure not to set the scroll target below the lowest point we can
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// scroll to, i.e. the content height minus the view height
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var metrics = this.workspace_.getMetrics();
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var contentHeight = metrics.contentHeight;
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var viewHeight = metrics.viewHeight;
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this.scrollTarget = Math.min(this.scrollTarget, contentHeight - viewHeight);
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this.stepScrollAnimation();
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};
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/**
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* Scroll the flyout.
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* @param {!Event} e Mouse wheel scroll event.
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* @private
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*/
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Blockly.VerticalFlyout.prototype.wheel_ = function(e) {
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// remove scrollTarget to stop auto scrolling in stepScrollAnimation
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this.scrollTarget = null;
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var delta = e.deltaY;
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if (delta) {
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// Firefox's mouse wheel deltas are a tenth that of Chrome/Safari.
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// DeltaMode is 1 for a mouse wheel, but not for a trackpad scroll event
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if (goog.userAgent.GECKO && (e.deltaMode === 1)) {
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delta *= 10;
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}
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var metrics = this.getMetrics_();
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var pos = (metrics.viewTop - metrics.contentTop) + delta;
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var limit = metrics.contentHeight - metrics.viewHeight;
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pos = Math.min(pos, limit);
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pos = Math.max(pos, 0);
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this.scrollbar_.set(pos);
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// When the flyout moves from a wheel event, hide WidgetDiv and DropDownDiv.
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Blockly.WidgetDiv.hide(true);
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Blockly.DropDownDiv.hideWithoutAnimation();
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}
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// Don't scroll the page.
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e.preventDefault();
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// Don't propagate mousewheel event (zooming).
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e.stopPropagation();
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};
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/**
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* Delete blocks and background buttons from a previous showing of the flyout.
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* @private
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*/
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Blockly.VerticalFlyout.prototype.clearOldBlocks_ = function() {
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Blockly.VerticalFlyout.superClass_.clearOldBlocks_.call(this);
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// Do the same for checkboxes.
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for (var checkboxId in this.checkboxes_) {
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if (!Object.prototype.hasOwnProperty.call(this.checkboxes_, checkboxId)) {
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continue;
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}
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var checkbox = this.checkboxes_[checkboxId];
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checkbox.block.flyoutCheckbox = null;
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goog.dom.removeNode(checkbox.svgRoot);
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}
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this.checkboxes_ = {};
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};
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/**
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* Add listeners to a block that has been added to the flyout.
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* @param {Element} root The root node of the SVG group the block is in.
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* @param {!Blockly.Block} block The block to add listeners for.
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* @param {!Element} rect The invisible rectangle under the block that acts as
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* a button for that block.
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* @private
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*/
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Blockly.VerticalFlyout.prototype.addBlockListeners_ = function(root, block,
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rect) {
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Blockly.VerticalFlyout.superClass_.addBlockListeners_.call(this, root, block,
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rect);
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if (block.flyoutCheckbox) {
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this.listeners_.push(Blockly.bindEvent_(block.flyoutCheckbox.svgRoot,
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'mousedown', null, this.checkboxClicked_(block.flyoutCheckbox)));
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}
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};
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/**
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* Lay out the blocks in the flyout.
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* @param {!Array.<!Object>} contents The blocks and buttons to lay out.
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* @param {!Array.<number>} gaps The visible gaps between blocks.
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* @private
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*/
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Blockly.VerticalFlyout.prototype.layout_ = function(contents, gaps) {
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var margin = this.MARGIN;
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var flyoutWidth = this.getWidth() / this.workspace_.scale;
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var cursorX = margin;
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var cursorY = margin;
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for (var i = 0, item; item = contents[i]; i++) {
|
|
if (item.type == 'block') {
|
|
var block = item.block;
|
|
var allBlocks = block.getDescendants(false);
|
|
for (var j = 0, child; child = allBlocks[j]; j++) {
|
|
// Mark blocks as being inside a flyout. This is used to detect and
|
|
// prevent the closure of the flyout if the user right-clicks on such a
|
|
// block.
|
|
child.isInFlyout = true;
|
|
}
|
|
var root = block.getSvgRoot();
|
|
var blockHW = block.getHeightWidth();
|
|
|
|
// Figure out where the block goes, taking into account its size, whether
|
|
// we're in RTL mode, and whether it has a checkbox.
|
|
var oldX = block.getRelativeToSurfaceXY().x;
|
|
var newX = flyoutWidth - this.MARGIN;
|
|
|
|
var moveX = this.RTL ? newX - oldX : margin;
|
|
if (block.hasCheckboxInFlyout()) {
|
|
this.createCheckbox_(block, cursorX, cursorY, blockHW);
|
|
if (this.RTL) {
|
|
moveX -= (this.CHECKBOX_SIZE + this.CHECKBOX_MARGIN);
|
|
} else {
|
|
moveX += this.CHECKBOX_SIZE + this.CHECKBOX_MARGIN;
|
|
}
|
|
}
|
|
|
|
// The block moves a bit extra for the hat, but the block's rectangle
|
|
// doesn't. That's because the hat actually extends up from 0.
|
|
block.moveBy(moveX,
|
|
cursorY + (block.startHat_ ? Blockly.BlockSvg.START_HAT_HEIGHT : 0));
|
|
|
|
var rect = this.createRect_(block, this.RTL ? moveX - blockHW.width : moveX, cursorY, blockHW, i);
|
|
|
|
this.addBlockListeners_(root, block, rect);
|
|
|
|
cursorY += blockHW.height + gaps[i] + (block.startHat_ ? Blockly.BlockSvg.START_HAT_HEIGHT : 0);
|
|
} else if (item.type == 'button') {
|
|
var button = item.button;
|
|
var buttonSvg = button.createDom();
|
|
if (this.RTL) {
|
|
button.moveTo(flyoutWidth - this.MARGIN - button.width, cursorY);
|
|
} else {
|
|
button.moveTo(cursorX, cursorY);
|
|
}
|
|
button.show();
|
|
// Clicking on a flyout button or label is a lot like clicking on the
|
|
// flyout background.
|
|
this.listeners_.push(Blockly.bindEventWithChecks_(
|
|
buttonSvg, 'mousedown', this, this.onMouseDown_));
|
|
|
|
this.buttons_.push(button);
|
|
cursorY += button.height + gaps[i];
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Create and place a rectangle corresponding to the given block.
|
|
* @param {!Blockly.Block} block The block to associate the rect to.
|
|
* @param {number} x The x position of the cursor during this layout pass.
|
|
* @param {number} y The y position of the cursor during this layout pass.
|
|
* @param {!{height: number, width: number}} blockHW The height and width of the
|
|
* block.
|
|
* @param {number} index The index into the background buttons list where this
|
|
* rect should be placed.
|
|
* @return {!SVGElement} Newly created SVG element for the rectangle behind the
|
|
* block.
|
|
* @private
|
|
*/
|
|
Blockly.VerticalFlyout.prototype.createRect_ = function(block, x, y,
|
|
blockHW, index) {
|
|
// Create an invisible rectangle under the block to act as a button. Just
|
|
// using the block as a button is poor, since blocks have holes in them.
|
|
var rect = Blockly.utils.createSvgElement('rect',
|
|
{
|
|
'fill-opacity': 0,
|
|
'x': x,
|
|
'y': y,
|
|
'height': blockHW.height,
|
|
'width': blockHW.width
|
|
}, null);
|
|
rect.tooltip = block;
|
|
Blockly.Tooltip.bindMouseEvents(rect);
|
|
// Add the rectangles under the blocks, so that the blocks' tooltips work.
|
|
this.workspace_.getCanvas().insertBefore(rect, block.getSvgRoot());
|
|
|
|
block.flyoutRect_ = rect;
|
|
this.backgroundButtons_[index] = rect;
|
|
return rect;
|
|
};
|
|
|
|
/**
|
|
* Create and place a checkbox corresponding to the given block.
|
|
* @param {!Blockly.Block} block The block to associate the checkbox to.
|
|
* @param {number} cursorX The x position of the cursor during this layout pass.
|
|
* @param {number} cursorY The y position of the cursor during this layout pass.
|
|
* @param {!{height: number, width: number}} blockHW The height and width of the
|
|
* block.
|
|
* @private
|
|
*/
|
|
Blockly.VerticalFlyout.prototype.createCheckbox_ = function(block, cursorX,
|
|
cursorY, blockHW) {
|
|
var checkboxState = Blockly.VerticalFlyout.getCheckboxState(block.id);
|
|
var svgRoot = block.getSvgRoot();
|
|
var extraSpace = this.CHECKBOX_SIZE + this.CHECKBOX_MARGIN;
|
|
var width = this.RTL ? this.getWidth() / this.workspace_.scale - extraSpace : cursorX;
|
|
var height = cursorY + blockHW.height / 2 - this.CHECKBOX_SIZE / 2;
|
|
var touchMargin = this.CHECKBOX_TOUCH_PADDING;
|
|
var checkboxGroup = Blockly.utils.createSvgElement('g',
|
|
{
|
|
'transform': 'translate(' + width + ', ' + height + ')'
|
|
}, null);
|
|
Blockly.utils.createSvgElement('rect',
|
|
{
|
|
'class': 'blocklyFlyoutCheckbox',
|
|
'height': this.CHECKBOX_SIZE,
|
|
'width': this.CHECKBOX_SIZE,
|
|
'rx': this.CHECKBOX_CORNER_RADIUS,
|
|
'ry': this.CHECKBOX_CORNER_RADIUS
|
|
}, checkboxGroup);
|
|
Blockly.utils.createSvgElement('path',
|
|
{
|
|
'class': 'blocklyFlyoutCheckboxPath',
|
|
'd': this.CHECKMARK_PATH
|
|
}, checkboxGroup);
|
|
Blockly.utils.createSvgElement('rect',
|
|
{
|
|
'class': 'blocklyTouchTargetBackground',
|
|
'x': -touchMargin + 'px',
|
|
'y': -touchMargin + 'px',
|
|
'height': this.CHECKBOX_SIZE + 2 * touchMargin,
|
|
'width': this.CHECKBOX_SIZE + 2 * touchMargin,
|
|
}, checkboxGroup);
|
|
var checkboxObj = {svgRoot: checkboxGroup, clicked: checkboxState, block: block};
|
|
|
|
if (checkboxState) {
|
|
Blockly.utils.addClass((checkboxObj.svgRoot), 'checked');
|
|
}
|
|
|
|
block.flyoutCheckbox = checkboxObj;
|
|
this.workspace_.getCanvas().insertBefore(checkboxGroup, svgRoot);
|
|
this.checkboxes_[block.id] = checkboxObj;
|
|
};
|
|
|
|
/**
|
|
* Respond to a click on a checkbox in the flyout.
|
|
* @param {!Object} checkboxObj An object containing the svg element of the
|
|
* checkbox, a boolean for the state of the checkbox, and the block the
|
|
* checkbox is associated with.
|
|
* @return {!Function} Function to call when checkbox is clicked.
|
|
* @private
|
|
*/
|
|
Blockly.VerticalFlyout.prototype.checkboxClicked_ = function(checkboxObj) {
|
|
return function(e) {
|
|
this.setCheckboxState(checkboxObj.block.id, !checkboxObj.clicked);
|
|
// This event has been handled. No need to bubble up to the document.
|
|
e.stopPropagation();
|
|
e.preventDefault();
|
|
}.bind(this);
|
|
};
|
|
|
|
/**
|
|
* Set the state of a checkbox by block ID.
|
|
* @param {string} blockId ID of the block whose checkbox should be set
|
|
* @param {boolean} value Value to set the checkbox to.
|
|
* @public
|
|
*/
|
|
Blockly.VerticalFlyout.prototype.setCheckboxState = function(blockId, value) {
|
|
var checkboxObj = this.checkboxes_[blockId];
|
|
if (!checkboxObj || checkboxObj.clicked === value) {
|
|
return;
|
|
}
|
|
|
|
var oldValue = checkboxObj.clicked;
|
|
checkboxObj.clicked = value;
|
|
|
|
if (checkboxObj.clicked) {
|
|
Blockly.utils.addClass(checkboxObj.svgRoot, 'checked');
|
|
} else {
|
|
Blockly.utils.removeClass(checkboxObj.svgRoot, 'checked');
|
|
}
|
|
|
|
Blockly.Events.fire(new Blockly.Events.Change(
|
|
checkboxObj.block, 'checkbox', null, oldValue, value));
|
|
};
|
|
|
|
/**
|
|
* Determine if a drag delta is toward the workspace, based on the position
|
|
* and orientation of the flyout. This to decide if a new block should be
|
|
* created or if the flyout should scroll.
|
|
* @param {!goog.math.Coordinate} currentDragDeltaXY How far the pointer has
|
|
* moved from the position at mouse down, in pixel units.
|
|
* @return {boolean} true if the drag is toward the workspace.
|
|
* @package
|
|
*/
|
|
Blockly.VerticalFlyout.prototype.isDragTowardWorkspace = function(currentDragDeltaXY) {
|
|
var dx = currentDragDeltaXY.x;
|
|
var dy = currentDragDeltaXY.y;
|
|
// Direction goes from -180 to 180, with 0 toward the right and 90 on top.
|
|
var dragDirection = Math.atan2(dy, dx) / Math.PI * 180;
|
|
|
|
var draggingTowardWorkspace = false;
|
|
var range = this.dragAngleRange_;
|
|
if (this.toolboxPosition_ == Blockly.TOOLBOX_AT_LEFT) {
|
|
// Vertical at left.
|
|
if (dragDirection < range && dragDirection > -range) {
|
|
draggingTowardWorkspace = true;
|
|
}
|
|
} else {
|
|
// Vertical at right.
|
|
if (dragDirection < -180 + range || dragDirection > 180 - range) {
|
|
draggingTowardWorkspace = true;
|
|
}
|
|
}
|
|
return draggingTowardWorkspace;
|
|
};
|
|
|
|
/**
|
|
* Return the deletion rectangle for this flyout in viewport coordinates.
|
|
* Deletion area is the height of the flyout, but extends to the left (in LTR)
|
|
* by a lot in order to allow for deleting blocks when dragged beyond the left
|
|
* window edge. In RTL, the delete area extends off to the right.
|
|
* The top/bottom do not extend to allow dragging blocks outside of the workspace
|
|
* to be dropped (e.g. to the backpack).
|
|
* @return {goog.math.Rect} Rectangle in which to delete.
|
|
*/
|
|
Blockly.VerticalFlyout.prototype.getClientRect = function() {
|
|
if (!this.svgGroup_) {
|
|
return null;
|
|
}
|
|
|
|
var flyoutRect = this.svgGroup_.getBoundingClientRect();
|
|
// BIG_NUM is offscreen padding so that blocks dragged beyond the shown flyout
|
|
// area are still deleted. Must be larger than the largest screen size,
|
|
// but be smaller than half Number.MAX_SAFE_INTEGER (not available on IE).
|
|
var BIG_NUM = 1000000000;
|
|
var x = flyoutRect.left;
|
|
var y = flyoutRect.top;
|
|
var width = flyoutRect.width;
|
|
var height = flyoutRect.height;
|
|
|
|
if (this.toolboxPosition_ == Blockly.TOOLBOX_AT_LEFT) {
|
|
return new goog.math.Rect(x - BIG_NUM, y, BIG_NUM + width, height);
|
|
} else { // Right
|
|
return new goog.math.Rect(x, y, BIG_NUM + width, height);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Compute width of flyout. Position button under each block.
|
|
* For RTL: Lay out the blocks right-aligned.
|
|
* @param {!Array<!Blockly.Block>} blocks The blocks to reflow.
|
|
*/
|
|
Blockly.VerticalFlyout.prototype.reflowInternal_ = function(/* blocks */) {
|
|
// This is a no-op because the flyout is a fixed size.
|
|
return;
|
|
};
|
|
|
|
/**
|
|
* Gets the checkbox state for a block
|
|
* @param {string} blockId The ID of the block in question.
|
|
* @return {boolean} Whether the block is checked.
|
|
* @public
|
|
*/
|
|
Blockly.VerticalFlyout.getCheckboxState = function(/* blockId */) {
|
|
return false;
|
|
};
|