group each plugin in its own folder

src/editor/extensions/ext-overview_window/ext-overview_window.js

@@ -0,0 +1,159 @@
+/**
+ * @file ext-overview_window.js
+ *
+ * @license MIT
+ *
+ * @copyright 2013 James Sacksteder
+ *
+ */
+export default {
+  name: 'overview_window',
+  init ({$, isChrome, isIE}) {
+    const overviewWindowGlobals = {};
+    // Disabled in Chrome 48-, see https://github.com/SVG-Edit/svgedit/issues/26 and
+    // https://code.google.com/p/chromium/issues/detail?id=565120.
+    if (isChrome()) {
+      const verIndex = navigator.userAgent.indexOf('Chrome/') + 7;
+      const chromeVersion = Number.parseInt(navigator.userAgent.substring(verIndex));
+      if (chromeVersion < 49) {
+        return undefined;
+      }
+    }
+
+    // Define and insert the base html element.
+    const propsWindowHtml =
+      '<div id="overview_window_content_pane" style="width:100%; ' +
+        'word-wrap:break-word;  display:inline-block; margin-top:20px;">' +
+        '<div id="overview_window_content" style="position:relative; ' +
+          'left:12px; top:0px;">' +
+          '<div style="background-color:#A0A0A0; display:inline-block; ' +
+            'overflow:visible;">' +
+            '<svg id="overviewMiniView" width="150" height="100" x="0" ' +
+              'y="0" viewBox="0 0 4800 3600" ' +
+                'xmlns="http://www.w3.org/2000/svg" ' +
+                'xmlns:xlink="http://www.w3.org/1999/xlink">' +
+              '<use x="0" y="0" xlink:href="#svgroot"> </use>' +
+            '</svg>' +
+            '<div id="overview_window_view_box" style="min-width:50px; ' +
+              'min-height:50px; position:absolute; top:30px; left:30px; ' +
+              'z-index:5; background-color:rgba(255,0,102,0.3);">' +
+            '</div>' +
+          '</div>' +
+        '</div>' +
+      '</div>';
+    $('#sidepanels').append(propsWindowHtml);
+
+    // Define dynamic animation of the view box.
+    const updateViewBox = function () {
+      const portHeight = Number.parseFloat($('#workarea').css('height'));
+      const portWidth = Number.parseFloat($('#workarea').css('width'));
+      const portX = $('#workarea').scrollLeft();
+      const portY = $('#workarea').scrollTop();
+      const windowWidth = Number.parseFloat($('#svgcanvas').css('width'));
+      const windowHeight = Number.parseFloat($('#svgcanvas').css('height'));
+      const overviewWidth = $('#overviewMiniView').attr('width');
+      const overviewHeight = $('#overviewMiniView').attr('height');
+
+      const viewBoxX = portX / windowWidth * overviewWidth;
+      const viewBoxY = portY / windowHeight * overviewHeight;
+      const viewBoxWidth = portWidth / windowWidth * overviewWidth;
+      const viewBoxHeight = portHeight / windowHeight * overviewHeight;
+
+      $('#overview_window_view_box').css('min-width', viewBoxWidth + 'px');
+      $('#overview_window_view_box').css('min-height', viewBoxHeight + 'px');
+      $('#overview_window_view_box').css('top', viewBoxY + 'px');
+      $('#overview_window_view_box').css('left', viewBoxX + 'px');
+    };
+    $('#workarea').scroll(function () {
+      if (!(overviewWindowGlobals.viewBoxDragging)) {
+        updateViewBox();
+      }
+    });
+    $('#workarea').resize(updateViewBox);
+    updateViewBox();
+
+    // Compensate for changes in zoom and canvas size.
+    const updateViewDimensions = function () {
+      const viewWidth = $('#svgroot').attr('width');
+      const viewHeight = $('#svgroot').attr('height');
+
+      let viewX = 640;
+      let viewY = 480;
+      if (isIE()) {
+        // This has only been tested with Firefox 10 and IE 9 (without chrome frame).
+        // I am not sure if if is Firefox or IE that is being non compliant here.
+        // Either way the one that is noncompliant may become more compliant later.
+        // TAG:HACK
+        // TAG:VERSION_DEPENDENT
+        // TAG:BROWSER_SNIFFING
+        viewX = 0;
+        viewY = 0;
+      }
+
+      const svgWidthOld = $('#overviewMiniView').attr('width');
+      const svgHeightNew = viewHeight / viewWidth * svgWidthOld;
+      $('#overviewMiniView').attr('viewBox', viewX + ' ' + viewY + ' ' + viewWidth + ' ' + viewHeight);
+      $('#overviewMiniView').attr('height', svgHeightNew);
+      updateViewBox();
+    };
+    updateViewDimensions();
+
+    // Set up the overview window as a controller for the view port.
+    overviewWindowGlobals.viewBoxDragging = false;
+    const updateViewPortFromViewBox = function () {
+      const windowWidth = Number.parseFloat($('#svgcanvas').css('width'));
+      const windowHeight = Number.parseFloat($('#svgcanvas').css('height'));
+      const overviewWidth = $('#overviewMiniView').attr('width');
+      const overviewHeight = $('#overviewMiniView').attr('height');
+      const viewBoxX = Number.parseFloat($('#overview_window_view_box').css('left'));
+      const viewBoxY = Number.parseFloat($('#overview_window_view_box').css('top'));
+
+      const portX = viewBoxX / overviewWidth * windowWidth;
+      const portY = viewBoxY / overviewHeight * windowHeight;
+
+      $('#workarea').scrollLeft(portX);
+      $('#workarea').scrollTop(portY);
+    };
+    $('#overview_window_view_box').draggable({
+      containment: 'parent',
+      drag: updateViewPortFromViewBox,
+      start () { overviewWindowGlobals.viewBoxDragging = true; },
+      stop () { overviewWindowGlobals.viewBoxDragging = false; }
+    });
+    $('#overviewMiniView').click(function (evt) {
+      // Firefox doesn't support evt.offsetX and evt.offsetY.
+      const mouseX = (evt.offsetX || evt.originalEvent.layerX);
+      const mouseY = (evt.offsetY || evt.originalEvent.layerY);
+      const overviewWidth = $('#overviewMiniView').attr('width');
+      const overviewHeight = $('#overviewMiniView').attr('height');
+      const viewBoxWidth = Number.parseFloat($('#overview_window_view_box').css('min-width'));
+      const viewBoxHeight = Number.parseFloat($('#overview_window_view_box').css('min-height'));
+
+      let viewBoxX = mouseX - 0.5 * viewBoxWidth;
+      let viewBoxY = mouseY - 0.5 * viewBoxHeight;
+      // deal with constraints
+      if (viewBoxX < 0) {
+        viewBoxX = 0;
+      }
+      if (viewBoxY < 0) {
+        viewBoxY = 0;
+      }
+      if (viewBoxX + viewBoxWidth > overviewWidth) {
+        viewBoxX = overviewWidth - viewBoxWidth;
+      }
+      if (viewBoxY + viewBoxHeight > overviewHeight) {
+        viewBoxY = overviewHeight - viewBoxHeight;
+      }
+
+      $('#overview_window_view_box').css('top', viewBoxY + 'px');
+      $('#overview_window_view_box').css('left', viewBoxX + 'px');
+      updateViewPortFromViewBox();
+    });
+
+    return {
+      name: 'overview window',
+      canvasUpdated: updateViewDimensions,
+      workareaResized: updateViewBox
+    };
+  }
+};