Mac: Add dialogs for input type="file" (issue #632).

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@688 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/browser/browser_host_impl.cc

@@ -6,6 +6,7 @@
 #include "libcef/browser/browser_host_impl.h"
 
 #include <string>
+#include <utility>
 
 #include "libcef/browser/browser_context.h"
 #include "libcef/browser/context.h"
@@ -29,6 +30,8 @@
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/resource_request_info.h"
+#include "content/public/common/file_chooser_params.h"
+#include "content/public/common/selected_file_info.h"
 
 namespace {
 
@@ -1020,7 +1023,35 @@ content::JavaScriptDialogCreator*
 void CefBrowserHostImpl::RunFileChooser(
     content::WebContents* tab,
     const content::FileChooserParams& params) {
-  // TODO(cef): Implement this method to run the file chooser dialog.
+  content::RenderViewHost* render_view_host = tab->GetRenderViewHost();
+  if (!render_view_host)
+    return;
+
+  if (params.mode != content::FileChooserParams::Open &&
+      params.mode != content::FileChooserParams::OpenMultiple) {
+    NOTREACHED() << "unsupported file chooser mode requested";
+    return;
+  }
+
+  std::vector<FilePath> fileList;
+  PlatformRunFileChooser(tab, params, fileList);
+
+  const int kReadFilePermissions =
+      base::PLATFORM_FILE_OPEN |
+      base::PLATFORM_FILE_READ |
+      base::PLATFORM_FILE_EXCLUSIVE_READ |
+      base::PLATFORM_FILE_ASYNC;
+
+  // Convert FilePath list to SelectedFileInfo list.
+  std::vector<content::SelectedFileInfo> selected_files;
+  for (size_t i = 0; i < fileList.size(); ++i) {
+    selected_files.push_back(
+        content::SelectedFileInfo(fileList[i], FilePath::StringType()));
+  }
+
+  // Notify our RenderViewHost in all cases.
+  render_view_host->FilesSelectedInChooser(selected_files,
+                                           kReadFilePermissions);
 }
 
 void CefBrowserHostImpl::UpdatePreferredSize(content::WebContents* source,

libcef/browser/browser_host_impl.h

@@ -312,6 +312,11 @@ class CefBrowserHostImpl : public CefBrowserHost,
   // processing of shortcut keys.
   void PlatformHandleKeyboardEvent(
       const content::NativeWebKeyboardEvent& event);
+  // Invoke platform specific file open chooser.
+  void PlatformRunFileChooser(
+      content::WebContents* contents,
+      const content::FileChooserParams& params,
+      std::vector<FilePath>& files);
 
   void OnAddressChange(CefRefPtr<CefFrame> frame,
                        const GURL& url);

libcef/browser/browser_host_impl_gtk.cc

@@ -131,3 +131,10 @@ void CefBrowserHostImpl::PlatformHandleKeyboardEvent(
     const content::NativeWebKeyboardEvent& event) {
   // TODO(cef): Is something required here to handle shortcut keys?
 }
+
+void CefBrowserHostImpl::PlatformRunFileChooser(
+    content::WebContents* contents,
+    const content::FileChooserParams& params,
+    std::vector<FilePath>& files) {
+  NOTIMPLEMENTED();
+}

libcef/browser/browser_host_impl_mac.mm

@@ -6,9 +6,17 @@
 #include "libcef/browser/browser_host_impl.h"
 
 #import <Cocoa/Cocoa.h>
+#import <CoreServices/CoreServices.h>
 
+#include "base/file_util.h"
+#include "base/mac/mac_util.h"
+#include "base/string_util.h"
+#include "base/sys_string_conversions.h"
+#include "base/threading/thread_restrictions.h"
 #include "content/public/browser/native_web_keyboard_event.h"
+#include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_view.h"
+#include "content/public/common/file_chooser_params.h"
 #import  "ui/base/cocoa/underlay_opengl_hosting_window.h"
 #include "ui/gfx/rect.h"
 
@@ -50,6 +58,32 @@
 
 @end
 
+namespace {
+
+// Accept-types to file-types helper.
+NSMutableArray* GetFileTypesFromAcceptTypes(
+    const std::vector<string16>& accept_types) {
+  NSMutableArray* acceptArray = [[NSMutableArray alloc] init];
+  for (size_t i=0; i<accept_types.size(); i++) {
+    std::string ascii_type = UTF16ToASCII(accept_types[i]);
+    if (ascii_type.length()) {
+      // Just treat as extension if contains '.' as the first character.
+      if (ascii_type[0] == '.') {
+        [acceptArray addObject:base::SysUTF8ToNSString(ascii_type)];
+      } else {
+        // Otherwise convert mime to UTI.
+        NSString* mimeType = base::SysUTF8ToNSString(ascii_type);
+        NSString* UTI = [NSMakeCollectable(
+            UTTypeCreatePreferredIdentifierForTag(kUTTagClassMIMEType,
+                (CFStringRef) mimeType, NULL)) autorelease];
+        [acceptArray addObject:UTI];
+      }
+    }
+  }
+  return acceptArray;
+}
+
+}  // namespace
 
 bool CefBrowserHostImpl::PlatformViewText(const std::string& text) {
   NOTIMPLEMENTED();
@@ -143,3 +177,56 @@ void CefBrowserHostImpl::PlatformHandleKeyboardEvent(
   if ([event.os_event type] == NSKeyDown)
     [[NSApp mainMenu] performKeyEquivalent:event.os_event];
 }
+
+void CefBrowserHostImpl::PlatformRunFileChooser(
+    content::WebContents* contents,
+    const content::FileChooserParams& params,
+    std::vector<FilePath>& files) {
+  NSOpenPanel* openPanel = [NSOpenPanel openPanel];
+  if (!params.title.empty())
+    [openPanel setTitle:base::SysUTF16ToNSString(params.title)];
+
+  // Consider default file name if any.
+  FilePath default_file_name(params.default_file_name);
+
+  if (!default_file_name.empty()) {
+    if (!default_file_name.BaseName().empty()) {
+      NSString* defaultName = base::SysUTF8ToNSString(
+          default_file_name.BaseName().value());
+      [openPanel setNameFieldStringValue:defaultName];
+    }
+
+    if (!default_file_name.DirName().empty()) {
+      NSString* defaultDir = base::SysUTF8ToNSString(
+          default_file_name.DirName().value());
+      [openPanel setDirectoryURL:[NSURL fileURLWithPath:defaultDir]];
+    }
+  }
+
+  // Consider supported file types
+  if (!params.accept_types.empty()) {
+    [openPanel setAllowedFileTypes:GetFileTypesFromAcceptTypes(
+        params.accept_types)];
+  }
+
+  // Further panel configuration.
+  [openPanel setAllowsOtherFileTypes:YES];
+  [openPanel setAllowsMultipleSelection:
+      (params.mode == content::FileChooserParams::OpenMultiple)];
+  [openPanel setCanChooseFiles:YES];
+  [openPanel setCanChooseDirectories:NO];
+
+  // Show panel.
+  NSView* view = contents->GetNativeView();
+  [openPanel beginSheetModalForWindow:[view window] completionHandler:nil];
+  if ([openPanel runModal] == NSFileHandlingPanelOKButton) {
+    NSArray *urls = [openPanel URLs];
+    int i, count = [urls count];
+    for (i=0; i<count; i++) {
+      NSURL* url = [urls objectAtIndex:i];
+      if ([url isFileURL])
+        files.push_back(FilePath(base::SysNSStringToUTF8([url path])));
+    }
+  }
+  [NSApp endSheet:openPanel];
+}

libcef/browser/browser_host_impl_win.cc

@@ -260,3 +260,10 @@ void CefBrowserHostImpl::PlatformHandleKeyboardEvent(
   DefWindowProc(event.os_event.hwnd, event.os_event.message,
                 event.os_event.wParam, event.os_event.lParam);
 }
+
+void CefBrowserHostImpl::PlatformRunFileChooser(
+    content::WebContents* contents,
+    const content::FileChooserParams& params,
+    std::vector<FilePath>& files) {
+  NOTIMPLEMENTED();
+}