Current Dev State

static/js/ketcher2/script/editor/tool/reactionplus.js

@@ -0,0 +1,60 @@
+/****************************************************************************
+ * Copyright 2017 EPAM Systems
+ *
+ * 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.
+ ***************************************************************************/
+
+var Action = require('../action');
+
+function ReactionPlusTool(editor) {
+	if (!(this instanceof ReactionPlusTool))
+		return new ReactionPlusTool(editor);
+
+	this.editor = editor;
+	this.editor.selection(null);
+}
+ReactionPlusTool.prototype.mousedown = function (event) {
+	var rnd = this.editor.render;
+	var ci = this.editor.findItem(event, ['rxnPluses']);
+	if (ci && ci.map === 'rxnPluses') {
+		this.editor.hover(null);
+		this.editor.selection({ rxnPluses: [ci.id] });
+		this.dragCtx = { xy0: rnd.page2obj(event) };
+	}
+};
+ReactionPlusTool.prototype.mousemove = function (event) {
+	var rnd = this.editor.render;
+	if ('dragCtx' in this) {
+		if (this.dragCtx.action)
+			this.dragCtx.action.perform(rnd.ctab);
+		this.dragCtx.action = Action.fromMultipleMove(
+			rnd.ctab,
+			this.editor.selection() || {},
+			rnd.page2obj(event).sub(this.dragCtx.xy0)
+		);
+		this.editor.update(this.dragCtx.action, true);
+	} else {
+		this.editor.hover(this.editor.findItem(event, ['rxnPluses']));
+	}
+};
+ReactionPlusTool.prototype.mouseup = function (event) {
+	var rnd = this.editor.render;
+	if (this.dragCtx) {
+		this.editor.update(this.dragCtx.action); // TODO investigate, subsequent undo/redo fails
+		delete this.dragCtx;
+	} else {
+		this.editor.update(Action.fromPlusAddition(rnd.ctab, rnd.page2obj(event)));
+	}
+};
+
+module.exports = ReactionPlusTool;