mirror of
https://bitbucket.org/wisemapping/wisemapping-open-source.git
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112 lines
3.7 KiB
JavaScript
112 lines
3.7 KiB
JavaScript
/*
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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.RelationshipPivot = new Class({
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initialize: function(workspace, designer) {
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$assert(workspace, "workspace can not be null");
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$assert(designer, "designer can not be null");
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this._workspace = workspace;
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this._designer = designer;
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this._mouseMoveEvent = this._mouseMove.bind(this);
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this._onClickEvent = this._cleanOnMouseClick.bind(this);
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this._onTopicClick = this._connectOnFocus.bind(this);
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},
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start : function(sourceTopic, targetPos) {
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$assert(sourceTopic, "sourceTopic can not be null");
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$assert(targetPos, "targetPos can not be null");
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this.dispose();
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this._sourceTopic = sourceTopic;
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if (sourceTopic != null) {
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this._workspace.enableWorkspaceEvents(false);
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var sourcePos = sourceTopic.getPosition();
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this._pivot = new web2d.CurvedLine();
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this._pivot.setStyle(web2d.CurvedLine.SIMPLE_LINE);
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this._pivot.setDashed(2, 2);
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this._pivot.setFrom(sourcePos.x, sourcePos.y);
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this._pivot.setTo(targetPos.x, targetPos.y);
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this._workspace.appendChild(this._pivot);
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this._workspace.addEvent('mousemove', this._mouseMoveEvent);
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this._workspace.addEvent('click', this._onClickEvent);
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// Register focus events on all topics ...
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var model = this._designer.getModel();
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var topics = model.getTopics();
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topics.forEach(function(topic) {
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topic.addEvent('ontfocus', this._onTopicClick);
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}.bind(this));
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}
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},
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dispose : function() {
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var workspace = this._workspace;
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if (this._isActive()) {
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workspace.removeEvent('mousemove', this._mouseMoveEvent);
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workspace.removeEvent('click', this._onClickEvent);
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var model = this._designer.getModel();
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var topics = model.getTopics();
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topics.forEach(function(topic) {
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topic.removeEvent('ontfocus', this._onTopicClick);
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}.bind(this));
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workspace.removeChild(this._pivot);
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workspace.enableWorkspaceEvents(true);
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this._sourceTopic = null;
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this._pivot = null;
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}
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},
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_mouseMove : function(event) {
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var screen = this._workspace.getScreenManager();
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var pos = screen.getWorkspaceMousePosition(event);
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this._pivot.setTo(pos.x - 1, pos.y - 1);
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event.stopPropagation();
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return false;
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},
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_cleanOnMouseClick : function (event) {
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// The user clicks on a desktop on in other element that is not a node.
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this.dispose();
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event.stopPropagation();
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},
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_connectOnFocus : function(topic) {
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var sourceTopic = this._sourceTopic;
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this.dispose();
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this._designer.connectByRelation(sourceTopic, topic);
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},
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_isActive : function() {
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return this._pivot != null;
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}
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});
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