File size: 3,966 Bytes
fbe84a7 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 |
/**
* @license
* Visual Blocks Editor
*
* Copyright 2016 Massachusetts Institute of Technology
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @fileoverview Text input field with floating "remove" button.
* @author pkaplan@media.mit.edu (Paul Kaplan)
*/
'use strict';
goog.provide('Blockly.FieldTextInputRemovable');
goog.require('Blockly.BlockSvg.render');
goog.require('Blockly.Colours');
goog.require('Blockly.FieldTextInput');
goog.require('Blockly.Msg');
goog.require('Blockly.utils');
goog.require('goog.dom');
goog.require('goog.dom.TagName');
/**
* Class for an editable text field displaying a deletion icon when selected.
* @param {string} text The initial content of the field.
* @param {Function=} opt_validator An optional function that is called
* to validate any constraints on what the user entered. Takes the new
* text as an argument and returns either the accepted text, a replacement
* text, or null to abort the change.
* @param {RegExp=} opt_restrictor An optional regular expression to restrict
* typed text to. Text that doesn't match the restrictor will never show
* in the text field.
* @extends {Blockly.FieldTextInput}
* @constructor
*/
Blockly.FieldTextInputRemovable = function(text, opt_validator, opt_restrictor) {
Blockly.FieldTextInputRemovable.superClass_.constructor.call(this, text,
opt_validator, opt_restrictor);
};
goog.inherits(Blockly.FieldTextInputRemovable, Blockly.FieldTextInput);
/**
* Show the inline free-text editor on top of the text with the remove button.
* @private
*/
Blockly.FieldTextInputRemovable.prototype.showEditor_ = function() {
Blockly.FieldTextInputRemovable.superClass_.showEditor_.call(this);
var div = Blockly.WidgetDiv.DIV;
div.className += ' removableTextInput';
var removeButton =
goog.dom.createDom(goog.dom.TagName.IMG, 'blocklyTextRemoveIcon');
removeButton.setAttribute('src',
Blockly.mainWorkspace.options.pathToMedia + 'icons/remove.svg');
this.removeButtonMouseWrapper_ = Blockly.bindEvent_(removeButton,
'mousedown', this, this.removeCallback_);
div.appendChild(removeButton);
};
/**
* Function to call when remove button is called. Checks for removeFieldCallback
* on sourceBlock and calls it if possible.
* @private
*/
Blockly.FieldTextInputRemovable.prototype.removeCallback_ = function() {
if (this.sourceBlock_ && this.sourceBlock_.removeFieldCallback) {
this.sourceBlock_.removeFieldCallback(this);
} else {
console.warn('Expected a source block with removeFieldCallback');
}
};
/**
* Helper function to construct a FieldTextInputRemovable from a JSON arg object,
* dereferencing any string table references.
* @param {!Object} options A JSON object with options (text, class, and
* spellcheck).
* @returns {!Blockly.FieldTextInputRemovable} The new text input.
* @public
*/
Blockly.FieldTextInputRemovable.fromJson = function(options) {
var text = Blockly.utils.replaceMessageReferences(options['text']);
var field = new Blockly.FieldTextInputRemovable(text, options['class']);
if (typeof options['spellcheck'] == 'boolean') {
field.setSpellcheck(options['spellcheck']);
}
return field;
};
Blockly.Field.register(
'field_input_removable', Blockly.FieldTextInputRemovable);
|