Messagelib

webengineparthtmlwriter.cpp
1/*
2 SPDX-FileCopyrightText: 2016-2025 Laurent Montel <montel@kde.org>
3
4 SPDX-License-Identifier: GPL-2.0-or-later
5*/
6#include "webengineparthtmlwriter.h"
7#include "webengineembedpart.h"
8
9#include "messageviewer/messageviewerutil.h"
10#include "messageviewer_debug.h"
11#include "viewer/webengine/mailwebengineview.h"
12#include <QUrl>
13
14#include <QDir>
15#include <QTemporaryFile>
16#include <cassert>
17
18using namespace MessageViewer;
19
20WebEnginePartHtmlWriter::WebEnginePartHtmlWriter(MailWebEngineView *view, QObject *parent)
21 : QObject(parent)
22 , mHtmlView(view)
23{
24 assert(view);
25}
26
27WebEnginePartHtmlWriter::~WebEnginePartHtmlWriter()
28{
29 delete mTempFile;
30}
31
32void WebEnginePartHtmlWriter::begin()
33{
34 if (mState != State::Ended) {
35 qCWarning(MESSAGEVIEWER_LOG) << "begin() called on non-ended session!";
36 reset();
37 }
38
39 delete mTempFile;
40 mTempFile = nullptr;
41
42 BufferedHtmlWriter::begin();
43 MessageViewer::WebEngineEmbedPart::self()->clear();
44 mState = State::Begun;
45}
46
47void WebEnginePartHtmlWriter::end()
48{
49 BufferedHtmlWriter::end();
50 if (mState != State::Begun) {
51 qCWarning(MESSAGEVIEWER_LOG) << "Called on non-begun or queued session!";
52 }
53 if (!mExtraHead.isEmpty()) {
54 insertExtraHead();
55 mExtraHead.clear();
56 }
57 if (!mStyleBody.isEmpty()) {
58 insertBodyStyle();
59 mStyleBody.clear();
60 }
61 if (data().size() > 2000000) {
62 // qDebug() << " load big message ";
63 mTempFile = new QTemporaryFile(QDir::tempPath() + QLatin1StringView("/messageviewer_XXXXXX") + QLatin1StringView(".html"));
64 mTempFile->open();
65 mTempFile->write(data());
66 // Bug 387061
67 mHtmlView->load(QUrl::fromLocalFile(mTempFile->fileName()));
68 // qDebug() << " tempFile.fileName()" << mTempFile->fileName();
69 mHtmlView->show();
70 mTempFile->close();
71 } else {
72 mHtmlView->setContent(data(), QStringLiteral("text/html;charset=UTF-8"), QUrl(QStringLiteral("file:///")));
73 mHtmlView->show();
74 }
75 clear();
76
77 mHtmlView->setUpdatesEnabled(true);
78 mHtmlView->update();
79 mState = State::Ended;
80 Q_EMIT finished();
81}
82
83void WebEnginePartHtmlWriter::reset()
84{
85 BufferedHtmlWriter::reset();
86 if (mState != State::Ended) {
87 mState = State::Begun; // don't run into end()'s warning
88 end();
89 mState = State::Ended;
90 }
91}
92
93void WebEnginePartHtmlWriter::embedPart(const QByteArray &contentId, const QString &contentURL)
94{
95 MessageViewer::WebEngineEmbedPart::self()->addEmbedPart(contentId, contentURL);
96}
97
98void WebEnginePartHtmlWriter::insertExtraHead()
99{
100 const auto headTag(QByteArrayLiteral("<head>"));
101 const int index = m_data.indexOf(headTag);
102 if (index != -1) {
103 m_data.insert(index + headTag.length(), mExtraHead.toUtf8());
104 }
105}
106
107void WebEnginePartHtmlWriter::insertBodyStyle()
108{
109 const auto bodyTag(QByteArrayLiteral("<body>"));
110 const int index = m_data.indexOf(bodyTag);
111 if (index != -1) {
112 m_data.insert(index + bodyTag.length() - 1, mStyleBody.toUtf8());
113 }
114}
115
116void WebEnginePartHtmlWriter::setStyleBody(const QString &styleBody)
117{
118 mStyleBody = styleBody;
119}
120
121void WebEnginePartHtmlWriter::setExtraHead(const QString &str)
122{
123 mExtraHead = str;
124}
125
126#include "moc_webengineparthtmlwriter.cpp"
MessageViewer::BufferedHtmlWriter::reset
void reset() override
Stop all possibly pending processing in order to be able to call begin() again.
Definition bufferedhtmlwriter.cpp:33
MessageViewer::BufferedHtmlWriter::begin
void begin() override
Signal the begin of stuff to write.
Definition bufferedhtmlwriter.cpp:21
MessageViewer::BufferedHtmlWriter::end
void end() override
Signal the end of stuff to write.
Definition bufferedhtmlwriter.cpp:27
MessageViewer::MailWebEngineView
The MailWebEngineView class.
Definition mailwebengineview.h:26
QDir::tempPath
QString tempPath()
QObject::Q_EMIT
Q_EMITQ_EMIT
QUrl::fromLocalFile
QUrl fromLocalFile(const QString &localFile)
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