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Implement Go to location (with CFI)

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Kovid Goyal 2019-08-16 08:44:26 +05:30
parent cd71b471e1
commit 031b14fc78
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GPG Key ID: 06BC317B515ACE7C
6 changed files with 81 additions and 10 deletions
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1
src/pyj/read_book/globals.pyj
View File

@ -78,4 +78,5 @@ ui_operations = {
'forward_gesture': None,
'update_color_scheme': None,
'update_font_size': None,
'goto_bookpos': None,
}

7
src/pyj/read_book/goto.pyj
View File

@ -11,7 +11,7 @@ from read_book.toc import get_toc_maps, get_border_nodes
from read_book.globals import current_book
def create_goto_list(onclick):
def create_goto_list(onclick, current_cfi):
ans = E.div()
items = v'[]'
landmarks = current_book().manifest.landmarks
@ -25,6 +25,7 @@ def create_goto_list(onclick):
items.push(create_item(_('Document start'), action=onclick.bind(None, def(view): view.goto_doc_boundary(True);)))
items.push(create_item(_('Document end'), action=onclick.bind(None, def(view): view.goto_doc_boundary(False);)))
items.push(create_item(_('Metadata'), subtitle=_('Details about this book'), action=onclick.bind(None, def(view): view.show_book_metadata();)))
items.push(create_item(_('Location'), subtitle=current_cfi or None, action=onclick.bind(None, def(view): view.ask_for_location();)))
for l in landmarks:
items.push(create_item(l.title, action=onclick.bind(None, l.dest, l.frag)))
build_list(ans, items)
@ -38,8 +39,8 @@ def get_next_section(forward):
return after if forward else before
def create_goto_panel(book, container, onclick):
panel = create_goto_list(onclick)
def create_goto_panel(current_cfi, book, container, onclick):
panel = create_goto_list(onclick, current_cfi)
set_css(container, display='flex', flex_direction='column')
set_css(panel, flex_grow='10')
container.appendChild(panel)

2
src/pyj/read_book/overlay.pyj
View File

@ -520,7 +520,7 @@ class Overlay:
def show_goto(self):
self.hide_current_panel()
self.panels.push(TOCOverlay(self, create_goto_panel, _('Go to…')))
self.panels.push(TOCOverlay(self, create_goto_panel.bind(None, self.view.currently_showing.bookpos), _('Go to…')))
self.show_current_panel()
def show_search(self):

4
src/pyj/read_book/ui.pyj
View File

@ -65,6 +65,7 @@ class ReadUI:
ui_operations.forward_gesture = self.forward_gesture.bind(self)
ui_operations.update_color_scheme = self.update_color_scheme.bind(self)
ui_operations.update_font_size = self.update_font_size.bind(self)
ui_operations.goto_bookpos = self.goto_bookpos.bind(self)
def on_resize(self):
self.view.on_resize()
@ -154,6 +155,9 @@ class ReadUI:
def update_font_size(self):
self.view.update_font_size()
def goto_bookpos(self, bookpos):
return self.view.goto_bookpos(bookpos)
def update_color_scheme(self):
self.view.update_color_scheme()

73
src/pyj/read_book/view.pyj
View File

@ -30,6 +30,7 @@ from read_book.toc import get_current_toc_nodes, update_visible_toc_nodes
from read_book.touch import set_left_margin_handler, set_right_margin_handler
from session import get_device_uuid, get_interface_data
from utils import html_escape, is_ios, parse_url_params, username_key
from widgets import create_button
add_extra_css(def():
sel = '.book-side-margin'
@ -73,14 +74,14 @@ def show_controls_help():
))
def show_metadata_overlay(mi):
def setup_metadata_overlay(title):
container = document.getElementById('book-metadata-overlay')
clear(container)
container.style.display = 'block'
container.style.backgroundColor = get_color('window-background')
container.appendChild(E.div(
style='padding: 1ex 1em; border-bottom: solid 1px currentColor; display:flex; justify-content: space-between;',
E.h2(mi.title),
E.h2(title),
E.div(svgicon('close'), style='cursor:pointer', class_='simple-link', onclick=def(event):
event.preventDefault()
event.stopPropagation()
@ -88,11 +89,58 @@ def show_metadata_overlay(mi):
)
)
)
return container
def show_metadata_overlay(mi):
container = setup_metadata_overlay(mi.title)
container.appendChild(E.div(class_=BD_CLASS_NAME, style='padding: 1ex 1em'))
table = E.table(class_='metadata')
container.lastChild.appendChild(table)
render_metadata(mi, table)
def show_location_overlay(current_cfi):
container = setup_metadata_overlay(_('Go to location…'))
container_id = container.id
if current_cfi:
container.appendChild(E.div(
style='margin: 1rem; display: flex; align-items: baseline',
E.input(
type='text', readonly='readonly', value=_('Currently at: {}').format(current_cfi), name='current_location',
style='border-width: 0; background-color: transparent; outline: none; flex-grow: 10; font-family: inherit'
),
create_button(_('Copy'), action=def():
src = document.querySelector(f'#{container_id} [name=current_location]')
orig = src.value
src.value = current_cfi
src.focus()
src.select()
try:
document.execCommand('copy')
finally:
src.value = orig
src.blur()
)
))
container.appendChild(E.div(
style='margin: 1rem;',
E.div(
style='display: flex; align-items: baseline',
E.label(_('Go to:'), style='margin-right: 1rem'),
E.input(name='newloc', type='text', style='flex-grow: 10; margin-right: 1rem'), E.span(' '),
create_button(_('Go'), action=def():
src = document.querySelector(f'#{container_id} [name=newloc]')
if src.value:
if ui_operations.goto_bookpos(src.value):
document.getElementById(container_id).style.display = 'none'
else:
error_dialog(_('No such location'), _(
'No location {} found').format(src.value))
)
)
))
# }}}
def margin_elem(sd, which, id, onclick):
@ -122,6 +170,8 @@ class View:
self.loaded_resources = {}
self.current_progress_frac = self.current_file_progress_frac = 0
self.current_toc_node = self.current_toc_toplevel_node = None
self.report_cfi_callbacks = {}
self.show_chrome_counter = 0
self.clock_timer_id = 0
sd = get_session_data()
left_margin = E.div(svgicon('caret-left'), style='width:{}px;'.format(sd.get('margin_left', 20)), class_='book-side-margin', id='book-left-margin', onclick=self.left_margin_clicked)
@ -269,7 +319,12 @@ class View:
self.content_popup_overlay.hide()
def show_chrome(self):
self.show_chrome_counter += 1
self.get_current_cfi('show-chrome-' + self.show_chrome_counter, self.do_show_chrome)
def do_show_chrome(self, request_id, cfi_data):
self.hide_overlays()
self.on_update_cfi(cfi_data)
self.overlay.show()
def show_search(self):
@ -451,6 +506,9 @@ class View:
mi = self.book.metadata
show_metadata_overlay(mi)
def ask_for_location(self):
show_location_overlay(self.currently_showing.bookpos)
def on_scroll_to_anchor(self, data):
self.show_name(data.name, initial_position={'type':'anchor', 'anchor':data.frag, 'replace_history':False})
@ -463,6 +521,8 @@ class View:
name = cfiname
pos.type, pos.cfi = 'cfi', internal_cfi
self.show_name(name, initial_position=pos)
return True
return False
def goto_named_destination(self, name, frag):
if self.currently_showing.name is name:
@ -507,12 +567,15 @@ class View:
if toc_node:
self.goto_named_destination(toc_node.dest, toc_node.frag)
def get_current_cfi(self, request_id):
def get_current_cfi(self, request_id, callback):
self.report_cfi_callbacks[request_id] = callback
self.iframe_wrapper.send_message('get_current_cfi', request_id=request_id)
def on_report_cfi(self, data):
ui_operations.report_cfi(
data.request_id, {'cfi': data.cfi, 'progress_frac': data.progress_frac, 'file_progress_frac': data.file_progress_frac})
cb = self.report_cfi_callbacks[data.request_id]
if cb:
cb(data.request_id, {'cfi': data.cfi, 'progress_frac': data.progress_frac, 'file_progress_frac': data.file_progress_frac})
v'delete self.report_cfi_callbacks[data.request_id]'
def on_update_cfi(self, data):
overlay_shown = not self.processing_spine_item_display and self.overlay.is_visible

4
src/pyj/viewer-main.pyj
View File

@ -216,7 +216,7 @@ def full_screen_state_changed(viewer_in_full_screen):
@from_python
def get_current_cfi(request_id):
view.get_current_cfi(request_id)
view.get_current_cfi(request_id, ui_operations.report_cfi)
def onerror(msg, script_url, line_number, column_number, error_object):
@ -251,6 +251,8 @@ if window is window.top:
view.update_color_scheme()
ui_operations.update_font_size = def():
view.update_font_size()
ui_operations.goto_bookpos = def(cfi):
return view.goto_bookpos(cfi)
ui_operations.toggle_toc = def():
to_python.toggle_toc()
ui_operations.toggle_bookmarks = def():