mirror of
https://github.com/sorenisanerd/gotty.git
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84 lines
2.5 KiB
JavaScript
84 lines
2.5 KiB
JavaScript
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wdi.CursorProcess = $.spcExtend(wdi.EventObject.prototype, {
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imageData: null,
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process: function(spiceMessage) {
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switch (spiceMessage.messageType) {
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case wdi.SpiceVars.SPICE_MSG_CURSOR_INIT:
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case wdi.SpiceVars.SPICE_MSG_CURSOR_SET:
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var wdiCursor = this.extractCursor(spiceMessage);
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if(wdiCursor) {
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wdi.VirtualMouse.setHotspot(0, 0);
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wdi.VirtualMouse.setMouse(wdiCursor.data, wdiCursor.header.hot_spot_x, wdiCursor.header.hot_spot_y);
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}
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break;
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}
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},
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_toUrl:function(data) {
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var imageData = $('<canvas/>').attr({
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'width': data.width,
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'height': data.height
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})[0];
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var ctx = imageData.getContext('2d');
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ctx.putImageData(data, 0, 0);
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return imageData.toDataURL("image/png");
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},
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extractCursor: function(spiceMessage) {
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var flags = spiceMessage.args.cursor.flags;
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var position = spiceMessage.args.position;
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var visible = spiceMessage.args.visible;
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//if there is no cursor, return null
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if(flags & 1) {
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return null;
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}
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var imageData = null;
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//cursor from cache?
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if(flags & wdi.SpiceCursorFlags.SPICE_CURSOR_FLAGS_FROM_CACHE) {
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imageData = wdi.ImageCache.getCursorFrom(spiceMessage.args.cursor);
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} else {
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//cursor from packet
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//any case should return url
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switch (spiceMessage.args.cursor.header.type) {
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case wdi.SpiceCursorType.SPICE_CURSOR_TYPE_ALPHA:
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imageData = this._toUrl(wdi.graphics.argbToImageData(spiceMessage.args.cursor.data, spiceMessage.args.cursor.header.width, spiceMessage.args.cursor.header.height));
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break;
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case wdi.SpiceCursorType.SPICE_CURSOR_TYPE_MONO:
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imageData = this._toUrl(wdi.graphics.monoToImageData(spiceMessage.args.cursor.data, spiceMessage.args.cursor.header.width, spiceMessage.args.cursor.header.height));
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break;
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case 8:
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imageData = wdi.SpiceObject.bytesToString(spiceMessage.args.cursor.data);
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break;
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case wdi.SpiceCursorType.SPICE_CURSOR_TYPE_COLOR4:
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case wdi.SpiceCursorType.SPICE_CURSOR_TYPE_COLOR8:
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case wdi.SpiceCursorType.SPICE_CURSOR_TYPE_COLOR16:
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case wdi.SpiceCursorType.SPICE_CURSOR_TYPE_COLOR24:
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case wdi.SpiceCursorType.SPICE_CURSOR_TYPE_COLOR32:
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case wdi.SpiceCursorType.SPICE_CURSOR_TYPE_ENUM_END:
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break;
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}
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}
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//got no cursor? error!
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if(!imageData) {
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return null;
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}
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//we have cursor, cache it?
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if(flags & wdi.SpiceCursorFlags.SPICE_CURSOR_FLAGS_CACHE_ME) {
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wdi.ImageCache.addCursor(spiceMessage.args.cursor, imageData);
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}
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return {
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data: imageData,
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position: position,
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visible: visible,
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header: spiceMessage.args.cursor.header
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};
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}
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});
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