1 /* 2 * Copyright 2009, The Android Open Source Project 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "EventPlugin.h" 27 #include "android_npapi.h" 28 29 #include <stdio.h> 30 #include <sys/time.h> 31 #include <time.h> 32 #include <math.h> 33 #include <string.h> 34 35 extern NPNetscapeFuncs* browser; 36 extern ANPCanvasInterfaceV0 gCanvasI; 37 extern ANPLogInterfaceV0 gLogI; 38 extern ANPPaintInterfaceV0 gPaintI; 39 extern ANPTypefaceInterfaceV0 gTypefaceI; 40 41 /////////////////////////////////////////////////////////////////////////////// 42 43 EventPlugin::EventPlugin(NPP inst) : SubPlugin(inst) { } 44 45 EventPlugin::~EventPlugin() { } 46 47 void EventPlugin::drawPlugin(const ANPBitmap& bitmap, const ANPRectI& clip) { 48 49 gLogI.log(kDebug_ANPLogType, " ------ %p drawing the plugin (%d,%d)", 50 inst(), bitmap.width, bitmap.height); 51 52 // get the plugin's dimensions according to the DOM 53 PluginObject *obj = (PluginObject*) inst()->pdata; 54 const int W = obj->window->width; 55 const int H = obj->window->height; 56 57 // compute the current zoom level 58 const float zoomFactorW = static_cast<float>(bitmap.width) / W; 59 const float zoomFactorH = static_cast<float>(bitmap.height) / H; 60 61 // check to make sure the zoom level is uniform 62 if (zoomFactorW + .01 < zoomFactorH && zoomFactorW - .01 > zoomFactorH) 63 gLogI.log(kError_ANPLogType, " ------ %p zoom is out of sync (%f,%f)", 64 inst(), zoomFactorW, zoomFactorH); 65 66 // scale the variables based on the zoom level 67 const int fontSize = (int)(zoomFactorW * 16); 68 const int leftMargin = (int)(zoomFactorW * 10); 69 70 // create and clip a canvas 71 ANPCanvas* canvas = gCanvasI.newCanvas(&bitmap); 72 73 ANPRectF clipR; 74 clipR.left = clip.left; 75 clipR.top = clip.top; 76 clipR.right = clip.right; 77 clipR.bottom = clip.bottom; 78 gCanvasI.clipRect(canvas, &clipR); 79 80 gCanvasI.drawColor(canvas, 0xFFFFFFFF); 81 82 // configure the paint 83 ANPPaint* paint = gPaintI.newPaint(); 84 gPaintI.setFlags(paint, gPaintI.getFlags(paint) | kAntiAlias_ANPPaintFlag); 85 gPaintI.setColor(paint, 0xFF0000FF); 86 gPaintI.setTextSize(paint, fontSize); 87 88 // configure the font 89 ANPTypeface* tf = gTypefaceI.createFromName("serif", kItalic_ANPTypefaceStyle); 90 gPaintI.setTypeface(paint, tf); 91 gTypefaceI.unref(tf); 92 93 // retrieve the font metrics 94 ANPFontMetrics fm; 95 gPaintI.getFontMetrics(paint, &fm); 96 97 // write text on the canvas 98 const char c[] = "Browser Test Plugin"; 99 gCanvasI.drawText(canvas, c, sizeof(c)-1, leftMargin, -fm.fTop, paint); 100 101 // clean up variables 102 gPaintI.deletePaint(paint); 103 gCanvasI.deleteCanvas(canvas); 104 } 105 106 void EventPlugin::printToDiv(const char* text, int length) { 107 // Get the plugin's DOM object 108 NPObject* windowObject = NULL; 109 browser->getvalue(inst(), NPNVWindowNPObject, &windowObject); 110 111 if (!windowObject) 112 gLogI.log(kError_ANPLogType, " ------ %p Unable to retrieve DOM Window", inst()); 113 114 // create a string (JS code) that is stored in memory allocated by the browser 115 const char* jsBegin = "var outputDiv = document.getElementById('eventOutput'); outputDiv.innerHTML += ' "; 116 const char* jsEnd = "';"; 117 118 // allocate memory and configure pointers 119 int totalLength = strlen(jsBegin) + length + strlen(jsEnd); 120 char* beginMem = (char*)browser->memalloc(totalLength); 121 char* middleMem = beginMem + strlen(jsBegin); 122 char* endMem = middleMem + length; 123 124 // copy into the allocated memory 125 memcpy(beginMem, jsBegin, strlen(jsBegin)); 126 memcpy(middleMem, text, length); 127 memcpy(endMem, jsEnd, strlen(jsEnd)); 128 129 gLogI.log(kDebug_ANPLogType, "text: %.*s\n", totalLength, (char*)beginMem); 130 131 // execute the javascript in the plugin's DOM object 132 NPString script = { (char*)beginMem, totalLength }; 133 NPVariant scriptVariant; 134 if (!browser->evaluate(inst(), windowObject, &script, &scriptVariant)) 135 gLogI.log(kError_ANPLogType, " ------ %p Unable to eval the JS.", inst()); 136 137 // free the memory allocated within the browser 138 browser->memfree(beginMem); 139 } 140 141 int16_t EventPlugin::handleEvent(const ANPEvent* evt) { 142 switch (evt->eventType) { 143 144 case kDraw_ANPEventType: { 145 switch (evt->data.draw.model) { 146 case kBitmap_ANPDrawingModel: 147 drawPlugin(evt->data.draw.data.bitmap, evt->data.draw.clip); 148 return 1; 149 default: 150 break; // unknown drawing model 151 } 152 } 153 case kLifecycle_ANPEventType: 154 switch (evt->data.lifecycle.action) { 155 case kOnLoad_ANPLifecycleAction: { 156 char msg[] = "lifecycle-onLoad"; 157 printToDiv(msg, strlen(msg)); 158 break; 159 } 160 case kGainFocus_ANPLifecycleAction: { 161 char msg[] = "lifecycle-gainFocus"; 162 printToDiv(msg, strlen(msg)); 163 break; 164 } 165 case kLoseFocus_ANPLifecycleAction: { 166 char msg[] = "lifecycle-loseFocus"; 167 printToDiv(msg, strlen(msg)); 168 break; 169 } 170 } 171 return 1; 172 case kTouch_ANPEventType: 173 gLogI.log(kError_ANPLogType, " ------ %p the plugin did not request touch events", inst()); 174 break; 175 case kKey_ANPEventType: 176 gLogI.log(kError_ANPLogType, " ------ %p the plugin did not request key events", inst()); 177 break; 178 default: 179 break; 180 } 181 return 0; // unknown or unhandled event 182 } 183
