Partially supported multilines.
This commit is contained in:
Paulo Veiga
271
mindplot/src/main/javascript/MultilineTextEditor.js
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271
mindplot/src/main/javascript/MultilineTextEditor.js
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/*
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* Copyright [2011] [wisemapping]
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*
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* Licensed under WiseMapping Public License, Version 1.0 (the "License").
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* It is basically the Apache License, Version 2.0 (the "License") plus the
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* "powered by wisemapping" text requirement on every single page;
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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.wisemapping.org/license
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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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mindplot.MultilineTextEditor = new Class({
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initialize:function(topic) {
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this._topic = topic;
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},
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_buildEditor : function() {
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this._size = {width:500, height:100};
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var result = new Element('div');
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result.setStyles({
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position:"absolute",
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display: "none",
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zIndex: "8",
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width:"500px",
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height:"100px"}
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);
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var inputContainer = new Element('div');
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inputContainer.setStyles({
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border:"none",
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overflow:"auto"
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});
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inputContainer.inject(result);
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var inputText = new Element('textarea',
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{ rows:2,
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tabindex:'-1',
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value:""}
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);
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inputText.setStyles({
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border:"none",
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background:"transparent"
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});
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inputText.inject(inputContainer);
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var spanContainer = new Element('div');
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spanContainer.setStyle('visibility', "hidden");
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spanContainer.inject(result);
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var spanElem = new Element('span', {tabindex:"-1"});
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spanElem.setStyle('white-space', "nowrap");
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spanElem.setStyle('nowrap', 'nowrap');
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spanElem.inject(spanContainer);
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return result;
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},
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_registerEvents : function(divElem) {
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var inputElem = this._getTextareaElem();
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var spanElem = this._getSpanElem();
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divElem.addEvent('keydown', function (event) {
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switch (event.key) {
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case 'esc':
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this.close(false);
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break;
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case 'enter':
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if (event.meta || event.control) {
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// @todo: Enters must be in any place ...
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inputElem.value = inputElem.value + "\n";
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}
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else {
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this.close(true);
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}
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break;
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default:
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spanElem.innerHTML = inputElem.value;
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var size = inputElem.value.length + 1;
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inputElem.size = size;
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if (spanElem.offsetWidth > (parseInt(divElem.style.width) - 100)) {
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divElem.style.width = (spanElem.offsetWidth + 100) + "px";
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}
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break;
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}
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event.stopPropagation();
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}.bind(this));
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// If the user clicks on the input, all event must be ignored ...
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divElem.addEvent('click', function(event) {
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event.stopPropagation();
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});
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divElem.addEvent('dblclick', function(event) {
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event.stopPropagation();
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});
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divElem.addEvent('mousedown', function(event) {
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event.stopPropagation();
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});
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},
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isVisible : function () {
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return $defined(this._divElem) && this._divElem.getStyle('display') == 'block';
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},
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_updateModel : function () {
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if (this._topic.getText() != this._getText()) {
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var text = this._getText();
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var topicId = this._topic.getId();
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var actionDispatcher = mindplot.ActionDispatcher.getInstance();
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actionDispatcher.changeTextOnTopic([topicId], text);
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}
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},
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show : function (text) {
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if (!this.isVisible()) {
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//Create editor ui
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var editorElem = this._buildEditor();
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editorElem.inject($(document.body));
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this._divElem = editorElem;
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this._registerEvents(editorElem);
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this._showEditor(text);
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}
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},
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_showEditor : function (defaultText) {
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var topic = this._topic;
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// Hide topic text ...
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topic.getTextShape().setVisibility(false);
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// Set Editor Style
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var nodeText = topic.getTextShape();
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var font = nodeText.getFont();
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font.size = nodeText.getHtmlFontSize();
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font.color = nodeText.getColor();
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this._setStyle(font);
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// Set editor's initial text
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var text = $defined(defaultText) ? defaultText : topic.getText();
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this._setText(text);
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// Set editor's initial size
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var displayFunc = function() {
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// Position the editor and set the size...
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var textShape = this._topic.getTextShape();
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textShape.positionRelativeTo(this._divElem, {
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position: {x: 'left',y:'top'},
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edge: {x: 'left', y: 'top'}
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});
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this._divElem.setStyle('display', 'block');
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// Set size ...
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var elemSize = topic.getSize();
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this._setEditorSize(elemSize.width, elemSize.height);
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var inputElem = this._getTextareaElem();
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inputElem.focus();
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this._changeCursor(inputElem, $defined(defaultText));
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}.bind(this);
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displayFunc.delay(10);
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},
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_setStyle : function (fontStyle) {
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var inputField = this._getTextareaElem();
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var spanField = this._getSpanElem();
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if (!$defined(fontStyle.font)) {
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fontStyle.font = "Arial";
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}
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if (!$defined(fontStyle.style)) {
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fontStyle.style = "normal";
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}
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if (!$defined(fontStyle.weight)) {
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fontStyle.weight = "normal";
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}
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if (!$defined(fontStyle.size)) {
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fontStyle.size = 12;
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}
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inputField.style.fontSize = fontStyle.size + "px";
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inputField.style.fontFamily = fontStyle.font;
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inputField.style.fontStyle = fontStyle.style;
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inputField.style.fontWeight = fontStyle.weight;
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inputField.style.color = fontStyle.color;
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spanField.style.fontFamily = fontStyle.font;
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spanField.style.fontStyle = fontStyle.style;
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spanField.style.fontWeight = fontStyle.weight;
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spanField.style.fontSize = fontStyle.size + "px";
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},
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_setText : function(text) {
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var inputField = this._getTextareaElem();
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inputField.size = text.length + 1;
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this._divElem.style.width = (inputField.size * parseInt(inputField.style.fontSize) + 100) + "px";
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var spanField = this._getSpanElem();
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spanField.innerHTML = text;
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inputField.value = text;
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},
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_getText : function() {
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return this._getTextareaElem().value;
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},
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_getTextareaElem : function() {
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return this._divElem.getElement('textarea');
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},
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_getSpanElem : function() {
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return this._divElem.getElement('span');
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},
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_setEditorSize : function (width, height) {
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var textShape = this._topic.getTextShape();
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var scale = web2d.peer.utils.TransformUtil.workoutScale(textShape._peer);
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this._size = {width:width * scale.width, height:height * scale.height};
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this._divElem.style.width = this._size.width * 2 + "px";
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this._divElem.style.height = this._size.height + "px";
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},
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_changeCursor : function(inputElem, selectText) {
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// Select text if it's required ...
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if (inputElem.createTextRange) //ie
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{
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var range = inputElem.createTextRange();
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var pos = inputElem.value.length;
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if (!selectText) {
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range.select();
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range.move("character", pos);
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}
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else {
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range.move("character", pos);
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range.select();
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}
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}
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else if (!selectText) {
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inputElem.setSelectionRange(0, inputElem.value.length);
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}
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},
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close : function(update) {
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if (this.isVisible()) {
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// Update changes ...
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if (!$defined(update) || update) {
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this._updateModel();
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}
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// Let make the visible text in the node visible again ...
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this._topic.getTextShape().setVisibility(true);
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// Remove it form the screen ...
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this._divElem.dispose();
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this._divElem = null;
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}
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}
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});
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