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Kovid Goyal 2013-06-03 15:23:53 +05:30
parent 5c9dea7064
commit aab5d9707a
1 changed files with 28 additions and 24 deletions
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52
src/calibre/gui2/viewer/documentview.py
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@ -29,7 +29,7 @@ from calibre.ebooks.oeb.display.webview import load_html
from calibre.constants import isxp, iswindows from calibre.constants import isxp, iswindows
# }}} # }}}
class Document(QWebPage): # {{{ class Document(QWebPage): # {{{
page_turn = pyqtSignal(object) page_turn = pyqtSignal(object)
mark_element = pyqtSignal(QWebElement) mark_element = pyqtSignal(QWebElement)
@ -356,7 +356,8 @@ class Document(QWebPage): # {{{
self.mainFrame().setScrollPosition(QPoint(x, y)) self.mainFrame().setScrollPosition(QPoint(x, y))
def jump_to_anchor(self, anchor): def jump_to_anchor(self, anchor):
if not self.loaded_javascript: return if not self.loaded_javascript:
return
self.javascript('window.paged_display.jump_to_anchor("%s")'%anchor) self.javascript('window.paged_display.jump_to_anchor("%s")'%anchor)
def element_ypos(self, elem): def element_ypos(self, elem):
@ -447,7 +448,7 @@ class Document(QWebPage): # {{{
@property @property
def width(self): def width(self):
return self.mainFrame().contentsSize().width() # offsetWidth gives inaccurate results return self.mainFrame().contentsSize().width() # offsetWidth gives inaccurate results
def set_bottom_padding(self, amount): def set_bottom_padding(self, amount):
s = QSize(-1, -1) if amount == 0 else QSize(self.viewportSize().width(), s = QSize(-1, -1) if amount == 0 else QSize(self.viewportSize().width(),
@ -460,7 +461,7 @@ class Document(QWebPage): # {{{
# }}} # }}}
class DocumentView(QWebView): # {{{ class DocumentView(QWebView): # {{{
magnification_changed = pyqtSignal(object) magnification_changed = pyqtSignal(object)
DISABLED_BRUSH = QBrush(Qt.lightGray, Qt.Dense5Pattern) DISABLED_BRUSH = QBrush(Qt.lightGray, Qt.Dense5Pattern)
@ -766,8 +767,10 @@ class DocumentView(QWebView): # {{{
@dynamic_property @dynamic_property
def current_language(self): def current_language(self):
def fget(self): return self.document.current_language def fget(self):
def fset(self, val): self.document.current_language = val return self.document.current_language
def fset(self, val):
self.document.current_language = val
return property(fget=fget, fset=fset) return property(fget=fget, fset=fset)
def search(self, text, backwards=False): def search(self, text, backwards=False):
@ -816,7 +819,6 @@ class DocumentView(QWebView): # {{{
self.scrollbar.blockSignals(False) self.scrollbar.blockSignals(False)
self._ignore_scrollbar_signals = False self._ignore_scrollbar_signals = False
def load_finished(self, ok): def load_finished(self, ok):
if self.loading_url is None: if self.loading_url is None:
# An <iframe> finished loading # An <iframe> finished loading
@ -960,8 +962,8 @@ class DocumentView(QWebView): # {{{
window_height = self.document.window_height window_height = self.document.window_height
document_height = self.document.height document_height = self.document.height
ddelta = document_height - window_height ddelta = document_height - window_height
#print '\nWindow height:', window_height # print '\nWindow height:', window_height
#print 'Document height:', self.document.height # print 'Document height:', self.document.height
delta_y = window_height - 25 delta_y = window_height - 25
if self.document.at_bottom or ddelta <= 0: if self.document.at_bottom or ddelta <= 0:
@ -974,19 +976,19 @@ class DocumentView(QWebView): # {{{
return return
else: else:
oopos = self.document.ypos oopos = self.document.ypos
#print 'Original position:', oopos # print 'Original position:', oopos
self.document.set_bottom_padding(0) self.document.set_bottom_padding(0)
opos = self.document.ypos opos = self.document.ypos
#print 'After set padding=0:', self.document.ypos # print 'After set padding=0:', self.document.ypos
if opos < oopos: if opos < oopos:
if self.manager is not None: if self.manager is not None:
if epf: if epf:
self.flipper.initialize(self.current_page_image()) self.flipper.initialize(self.current_page_image())
self.manager.next_document() self.manager.next_document()
return return
#oheight = self.document.height # oheight = self.document.height
lower_limit = opos + delta_y # Max value of top y co-ord after scrolling lower_limit = opos + delta_y # Max value of top y co-ord after scrolling
max_y = self.document.height - window_height # The maximum possible top y co-ord max_y = self.document.height - window_height # The maximum possible top y co-ord
if max_y < lower_limit: if max_y < lower_limit:
padding = lower_limit - max_y padding = lower_limit - max_y
if padding == window_height: if padding == window_height:
@ -995,28 +997,28 @@ class DocumentView(QWebView): # {{{
self.flipper.initialize(self.current_page_image()) self.flipper.initialize(self.current_page_image())
self.manager.next_document() self.manager.next_document()
return return
#print 'Setting padding to:', lower_limit - max_y # print 'Setting padding to:', lower_limit - max_y
self.document.set_bottom_padding(lower_limit - max_y) self.document.set_bottom_padding(lower_limit - max_y)
if epf: if epf:
self.flipper.initialize(self.current_page_image()) self.flipper.initialize(self.current_page_image())
#print 'Document height:', self.document.height # print 'Document height:', self.document.height
#print 'Height change:', (self.document.height - oheight) # print 'Height change:', (self.document.height - oheight)
max_y = self.document.height - window_height max_y = self.document.height - window_height
lower_limit = min(max_y, lower_limit) lower_limit = min(max_y, lower_limit)
#print 'Scroll to:', lower_limit # print 'Scroll to:', lower_limit
if lower_limit > opos: if lower_limit > opos:
self.document.scroll_to(self.document.xpos, lower_limit) self.document.scroll_to(self.document.xpos, lower_limit)
actually_scrolled = self.document.ypos - opos actually_scrolled = self.document.ypos - opos
#print 'After scroll pos:', self.document.ypos # print 'After scroll pos:', self.document.ypos
#print 'Scrolled by:', self.document.ypos - opos # print 'Scrolled by:', self.document.ypos - opos
self.find_next_blank_line(window_height - actually_scrolled) self.find_next_blank_line(window_height - actually_scrolled)
#print 'After blank line pos:', self.document.ypos # print 'After blank line pos:', self.document.ypos
if epf: if epf:
self.flipper(self.current_page_image(), self.flipper(self.current_page_image(),
duration=self.document.page_flip_duration) duration=self.document.page_flip_duration)
if self.manager is not None: if self.manager is not None:
self.manager.scrolled(self.scroll_fraction) self.manager.scrolled(self.scroll_fraction)
#print 'After all:', self.document.ypos # print 'After all:', self.document.ypos
def page_turn_requested(self, backwards): def page_turn_requested(self, backwards):
if backwards: if backwards:
@ -1110,7 +1112,8 @@ class DocumentView(QWebView): # {{{
return return
if self.document.in_paged_mode: if self.document.in_paged_mode:
if abs(event.delta()) < 15: return if abs(event.delta()) < 15:
return
typ = 'screen' if self.document.wheel_flips_pages else 'col' typ = 'screen' if self.document.wheel_flips_pages else 'col'
direction = 'next' if event.delta() < 0 else 'previous' direction = 'next' if event.delta() < 0 else 'previous'
loc = self.document.javascript('paged_display.%s_%s_location()'%( loc = self.document.javascript('paged_display.%s_%s_location()'%(
@ -1134,7 +1137,7 @@ class DocumentView(QWebView): # {{{
event.accept() event.accept()
return return
if self.document.at_bottom: if self.document.at_bottom:
self.scroll_by(y=15) # at_bottom can lie on windows self.scroll_by(y=15) # at_bottom can lie on windows
if self.manager is not None: if self.manager is not None:
self.manager.next_document() self.manager.next_document()
event.accept() event.accept()
@ -1262,3 +1265,4 @@ class DocumentView(QWebView): # {{{
# }}} # }}}