1
// Copyright 2007, Google Inc.
3
// Redistribution and use in source and binary forms, with or without
4
// modification, are permitted provided that the following conditions are met:
6
// 1. Redistributions of source code must retain the above copyright notice,
7
// this list of conditions and the following disclaimer.
8
// 2. Redistributions in binary form must reproduce the above copyright notice,
9
// this list of conditions and the following disclaimer in the documentation
10
// and/or other materials provided with the distribution.
11
// 3. Neither the name of Google Inc. nor the names of its contributors may be
12
// used to endorse or promote products derived from this software without
13
// specific prior written permission.
15
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
16
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
17
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
18
// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
19
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
21
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
24
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26
#ifndef GEARS_UI_COMMON_HTML_DIALOG_H__
27
#define GEARS_UI_COMMON_HTML_DIALOG_H__
29
#include "gears/base/common/string16.h"
30
#include "third_party/jsoncpp/json.h"
32
class BrowsingContext;
34
// Return values for showing dialogs. If the dialog returns SUPRESSED, it means
35
// that the SupressDialog preference in PermissionsDB is enabled for automated
37
enum HtmlDialogReturnValue {
40
HTML_DIALOG_SUPPRESSED
43
// This class implements a cross-platform modal dialog using HTML for the
44
// dialog UI. We use HTML because it's easy to create nice-looking UIs that
45
// work across platforms.
47
// Arguments and results are passed to JavaScript inside the dialog by way of
48
// JSON because that is easier and more flexible than mucking about with
49
// cross-platform VARIANT types.
51
// TODO(aa): The Json arguments and result fields want UTF-8 strings, but we
52
// use UTF-16 everywhere else in Gears. What can we do about this? Change
53
// jsoncpp? Or wrap it?
56
typedef void (* ModelessCompletionCallback)(Json::Value *result,
60
HtmlDialog(BrowsingContext *browsing_context)
61
: arguments(Json::objectValue),
62
result(Json::nullValue),
63
browsing_context_(browsing_context) {}
66
HtmlDialogReturnValue DoModal(const char16 *html_filename, int width,
69
// Open the dialog and call the callback when it's closed.
70
HtmlDialogReturnValue DoModeless(const char16 *html_filename, int width,
72
ModelessCompletionCallback callback,
75
// Parses the result from the dialog and assings to result_.
76
bool SetResult(const char16 *result_string);
78
// The arguments object that will be serialized to pass to the dialog.
79
Json::Value arguments;
81
// The results that were returned from the dialog.
85
// Platform-specific implementation of DoModal().
86
bool DoModalImpl(const char16 *html_filename, int width, int height,
87
const char16 *arguments_string);
89
bool DoModelessImpl(const char16 *html_filename, int width, int height,
90
const char16 *arguments_string,
91
ModelessCompletionCallback callback,
94
// GetLocale() is in the browser-specific HtmlDialog code.
95
bool GetLocale(std::string16 *locale);
97
BrowsingContext *browsing_context_;
100
#endif // GEARS_UI_COMMON_HTML_DIALOG_H__