Current Dev State

static/js/ketcher2/script/ui/action/zoom.js

@@ -0,0 +1,56 @@
+/****************************************************************************
+ * 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.
+ ***************************************************************************/
+
+import { findIndex, findLastIndex } from 'lodash/fp';
+
+export const zoomList = [
+	0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1,
+	1.1, 1.2, 1.3, 1.4, 1.5, 1.7, 2, 2.5, 3, 3.5, 4
+];
+
+export default {
+	"zoom": {
+		selected: editor => editor.zoom()
+	},
+	"zoom-out": {
+		shortcut: ["-", "_", "Shift+-"],
+		title: "Zoom Out",
+		disabled: editor => (
+			editor.zoom() <= zoomList[0] // unsave
+		),
+		action: editor => {
+			let zoom = editor.zoom();
+			let i = findIndex(z => z >= zoom, zoomList);
+			editor.zoom(
+				zoomList[(zoomList[i] === zoom && i > 0) ? i - 1 : i]
+			);
+		}
+	},
+	"zoom-in": {
+		shortcut: ["+", "=", "Shift+="],
+		title: "Zoom In",
+		disabled: editor => (
+			zoomList[zoomList.length - 1] <= editor.zoom()
+		),
+		action: editor => {
+			let zoom = editor.zoom();
+			let i = findLastIndex(z => z <= zoom, zoomList);
+			editor.zoom(
+				zoomList[(zoomList[i] === zoom && i < zoomList.length - 1) ? i + 1 : i]
+			);
+		}
+	}
+}